use of sea water for condenser water
use of sea water for condenser water
(OP)
a friend of mine is involved in design of 400000 sq. ft hotel project in the middle east. the hotel to be located on an island.he asked me about the possibility of using sea water as condenser water at chillers. not having any experience with this systtem, what are the challenges one
could confront implementing this system? and at what size
of project it can be made feasible relative to air cooled chillers or cooling towers. it seems to me corrosion of piping and heat exchangers, filtration and blockage of
water intakes are some of the issues.
could confront implementing this system? and at what size
of project it can be made feasible relative to air cooled chillers or cooling towers. it seems to me corrosion of piping and heat exchangers, filtration and blockage of
water intakes are some of the issues.





RE: use of sea water for condenser water
By using this setup, all chillers, coils, etc. could be made of standard materials. Only the secondary seawater loop would need more exotic materials of construction. The chillers would probably be much more efficient using this scheme than by using air cooled condensors, because your ambient dry bulb temperature is likely very high.
RE: use of sea water for condenser water
RE: use of sea water for condenser water
Sea water is used in many shell and tube exchangers (if this is the type of exchanger used) for condensing refrigerants used in air conditoning and marine applications. The most common tube material used is 90 / 10 Cu-Ni with 90 / 10 Cu-Ni clad tubesheets. The inside of the heads are usually coated with some sort of tarset material to prevent corrosion of the heads. The heads along with the rest of the exchanger is made out of standard carbon steel.
RE: use of sea water for condenser water
RE: use of sea water for condenser water
The infrastructure facility may be expensive like sea water intake well, screens, pump room etc and dischrge back to sea. But considering the low operating cost of the system, the pay back may be good.
Regards
R.Vijay
RE: use of sea water for condenser water
Clever little blighters ....
We had a lot of trouble with environmental control getting approval for chemicals for mussel-limitation, and also had to use a venturi at the hot water discharge to ensure we got a very quick mix so that we didn't overheat too much of the surrounding water for fear what it would do to the marine life ...
RE: use of sea water for condenser water
Just thinking loud - how is the air-conditioning done in ships ???
HVAC68
HVAC68
RE: use of sea water for condenser water
Using sea water demands that only certain materials be used, and that the system be completely separate from the closed chiller loop. Many manufacturers make appropriate heat exchangers and can recommend how often to maintain them.
RE: use of sea water for condenser water
RE: use of sea water for condenser water
I worked with same for 20 years.
All major chiller manufacturers make direct S/W cooled chillers for marine applications.
Direct cooling is certainly best when possible.
Shore based fixed installs nearly always encounter problems due to marine growth/obstruction. So back-up conventional F/W Towers are not a bad idea unless design/appearance prevents it.
That problem, the extent of it, and the answer to it would be best addressed by marine engineering firms with experience in that local.
RE: use of sea water for condenser water
rmw
RE: use of sea water for condenser water
For a typical chiller, 90-10 Cu-Ni plus Sakaphen is double the cost of 90-10 Cu-Ni alone.
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